Superfeet are a good idea, but they stabilize the heel rather than providing extra cushioning.

I do not hike in boots or ankle braces. Boots have their place, but seldom for me.

I treat water rather than use a filter.

The safety seems to focus on external dangers. Hikers generally are their own worst enemy - getting lost, getting hurt, getting dehydrated, getting hypothermia, etc. Hiking is just walking where you can pee. In my opinion the drive to the trailhead is more dangerous than the hike.